Shuttle-brake.



PATBNTBD AUG.`1'1905."

y J. LAPORBT. SHUTTLE BRAKE. APPLICATION IILNED IAB/N9, 1905.

UNITED sTATEs PATENT oFFIoE.

JEAN LAFORET, OF ETOILE, .FRANOE, ASSIGNOR TO ALBERT B. STRANGE,

' OF NEW YORK, N. Y.

SHUTTLE-BRAKE.

' Specification of Letters Patent.

' Patented Aug. 1, 1905.

Application iled March 9, 1905. Serial No. 249,204.

of the Republic of France, residing in Etoile, Department de la Drme, France, have invented certain new and useful Improvements in Shuttle-Brakes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

My invention relates to shuttle-checks for looms, and it has reference particularly to that class of such devices wherein the binder or movable part of the box is a contrivance Y which comes to bear against the shuttle at two different points thereon as the shuttle is driven home. y

One of the principal4 objects of the invention is to provide a shuttle-check which will act to bring the shuttle gradually to a stop as it enters the box and at the same time prevent the rebound thereof.

My invention will be found fully illustrated in the accompanying drawings, wherein-` Figures 1 and 2 show a loom shuttle-box in horizontal section and provided with my improved checking means in two different positions of the parts, the one where the shuttle is out of the box and the other where it is in the box; and Fig. 3 is a view substantially likel Fig. 1 except that it illustrates a modifi- A is itted a square hearing-block Z, which vdirectly receives pin and which is secured in the lever by a horizontal set-screw m. The lever j has its long arm toward the lay or batten, and on the side toward the wall 0 of the shuttle-box it has a long-curved.wearing-face n, with which the shuttle engages. To limit the inward movement of this arm of the lever, it is formed with an extension 0, adapted to be received by a rabbet p, formed in the end of the opening t, and to limit the outward movement of said arm of the lever a stop g, having an upturned end 9" arranged in the plane of the lever, is mounted in the back of the shuttle-box. The lever is normally held with its longer arm pressed inwardly by a spring s, fixed at one end to the back of the shuttle-box, coiled and having its free end bearing against the back of said long arm of the lever. formed on the side toward4 the wall o with a recess 15. In this recess plays a bearing-piece u, having the side thereof toward the wall c rounded and faced with leather o yor some such material as will have a good braking effect on the shuttle. Such -bearing-piece is fulcrumed at the end thereof toward the batten in a block w, having a threaded stem which extends through leverj and carries a securing-nut y. The bearing-piece u is normally pressed toward wall c by a plate-spring z, which is secured between the block w and lever j, being penetrated by the stem a' of said block. The outer end of the lever j receives a recessed stop 1, which is secured thereto by ascrew 2 and which receives a projection 3 on the bearing-piece u, and thereby limits the latters movement. 4: is afset-screw for adjusting the play of the bearing-piece u around its fulcrum.

Referring to Fig. 3, on the back of the shuttlc-box is secured abracket 5, carrying a pin 6, on which is mounted a bearing-block 7. Said bearing-block has two threaded screws 8, provided with nuts 9, whereby a metallic plate 10, in this instance forming a part of the lever j, is secured to said bearing-block. The bearing-piece 11 in this instancel comprises a rigid back 12, a cushion, say, of rubber, 13, and a leather facing-strip 14, which extends over the face of the cushion toward wall o and has its ends secured by screws 15 to the ends of the back 12, thus holding the cushion in place. 16 represents screws having laterally-projecting trunnions 17, having bearings in the back and penetratinga longitudinal slot 18 in the plate 10, being adjustably secured therein by-nu'ts 19. 2() is a pin i which penetrates the back wall d of the shuttle-boxvertically and on which the bearing- Ablock 7 may have a fulcrum instead of on the pin 6 by reversing the position of said bear- The short arm of the lever isA ing-block and securing it to the side of the vlever opposite to that on which it is shown.

features of my shuttle-check is a lever carry-v ing at one end a shuttle bearing-piece pivotally mounted therein and adjustable around its pivot, so as to vary the distance between itself and the wall c of the shuttle-box when the parts are in action-z'. e. holding the shuttle in the box.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1, In a loom, the combination of a shuttlebox and ashuttle-check comprising a lever fulcrumed therein between the ends of said lever, said lever having its long arm toward the batten, a bearing-piece arranged in the short arm of said lever, and a pivotal support for said bearing-piece adjustably arranged in the lever, substantially as described.

2. In a loom, the combination of a shuttleboX and a shuttle-cheek comprising a lever fulcrumed therein between the ends of said lever,havingits long arm toward the batten and formed with a long-curved shuttle-bearing surface and a bearing-piece carried by the short arm of said lever and adjustable therein, substantially as described.

3. In a loom, the combination of a shuttlebox and ashuttle-cheeh comprising a lever fulerumed therein between the 'ends of said lever,having its long arm toward the batten and formed with a long-curved shuttle-bearing surface and a bearing-piece carried by the short arm of said level` and faced with a shuttle-adhering substance, substantially as described.

In testimony that I elaim the foregoing l have hereunto set my hand this 20th (lay of February, 1905.

JEAN LAFORET.

Witnesses:

JEAN GERMAIN, GUILLAUME SIooHE. 

